I was hoping to see more discussion on the actual premise here. For example, should dropbox open source? Should squarespace open source? What did reddit get out

I was hoping to see more discussion on the actual premise here. For example, should dropbox open source? Should squarespace open source? What did reddit get out of open sourcing (karma?)? Wordpress obviously benefited from of an amazing supporting complementary ecosystem at the same time they turned their own product into a commodity. Love to hear what you think.